I personally, speaking as an "allergic to and never been a cat owner" would try to dump the entire box, or anything that had been exposed to the urine into the washing machine with Oxy wash on hot, air dry and starch and reshape. Anything that doesn't make it through the wash is trash, anything that makes it belongs to my daughter. I would certainly not try to sell anything, as that would put your professional reputation on the line, but since you are pretty much considering them trash anyway, why not give it a try.

Besides, I would be interested in how well that my bows hold up through the wash anyway and if nothing more it gives you an educated idea of how they will fare.